#include <iostream>
#include <chrono>

int main ( int argc, char **argv )
{
    {
        using std::chrono::system_clock;
        
        std::chrono::duration<int,std::ratio<60*60*24> > one_day (1);
        
        system_clock::time_point today = system_clock::now();
        system_clock::time_point tomorrow = today + one_day;
        
        std::time_t tt;
        
        tt = system_clock::to_time_t ( today );
        std::cout << "today is: " << ctime(&tt);
        
        tt = system_clock::to_time_t ( tomorrow );
        std::cout << "tomorrow will be: " << ctime(&tt);

    }

    return 0;
}
